英語聽力是英語四級考試中的重要組成部分，對于中國的考生，日常英文聽說機會少，缺少聽力訓(xùn)練，所以在備考大學(xué)英語四級時，需要加強對四級聽力的訓(xùn)練。針對這一情況，英語四級頻道特別整理聽力練習(xí)50篇，供學(xué)員參考使用。預(yù)祝大家高分通過考試。
    2018年12月英語四級聽力50篇匯總
    英語四級聽力50篇：07 Plastic
    We use plastic wrap to protect our foods. We put our garbage in plastic bags or plastic cans. We sit on plastic chairs, play with plastic toys, drink from plastic cups, and wash our hair with shampoo from plastic bottles!
    Plastic does not grow in nature. It is made by mixing certain things together. We call it a produced or manufactured material. Plastic was first made in the 1860s from plants, such as wood and cotton. That plastic was soft and burned easily.
    The first modern plastics were made in the 1930s. Most clear plastic starts out as thick, black oil. That plastic coating inside a pan begins as natural gas.
    Over the years, hundreds of different plastics have been developed. Some are hard and strong. Some are soft and bendable. Some are clear. Some are many-colored. There is a plastic for almost every need. Scientists continue to experiment with plastics. They hope to find even ways to use them!
    2018年12月英語四級聽力50篇匯總